#043F3B#043F3B

#043F3B is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.2% C 0.056 H 187.6°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#043F3B
RGB	rgb(4, 63, 59)
HSL	hsl(176, 88%, 13%)
HSV	hsv(176, 94%, 25%)
CMYK	cmyk(93.7%, 0%, 6.3%, 75.3%)
CIE-LAB	lab(23.33, -18.53, -2.61)
CIE-LCH	lch(23.33, 18.72, 188.01°)
OKLab	oklab(33.22% -0.0553 -0.0074)
OKLCH	oklch(33.22% 0.056 187.6)
XYZ	xyz(2.6166, 3.8963, 4.7510)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043F3B #3F0408

analogous

#043F1D #043F3B #04253F

triadic

#043F3B #3B043F #3F3B04

tetradic

#043F3B #1D043F #3F0408 #253F04

square

#043F3B #1D043F #3F0408 #253F04

split-complementary

#043F3B #3F0425 #3F1D04

monochromatic

#021D1B #021D1B #043F3B #087971 #0BB2A7

Accessibility & contrast

On white

11.80

#043F3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#043F3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043F3B

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043F3B	#FFFFFF	#000000	##FFFFFF
##043F3B	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3B3B

Deuteranopia (green-blind)

#33353C

Tritanopia (blue-blind)

#00413E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #043f3b;
/* rgb */ color: rgb(4, 63, 59);
/* oklch */ color: oklch(33.2% 0.056 187.6);

Tailwind

colors: {
  custom: {
    50: '#527470',
    500: '#043f3b',
    950: '#000000',
  },
}

SCSS

$custom: #043f3b;
$custom-light: #527470;
$custom-dark: #000000;

JSON

{
  "hex": "#043f3b",
  "rgb": {
    "r": 4,
    "g": 63,
    "b": 59
  },
  "hsl": {
    "h": 175.932,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.3322,
    "c": 0.05583,
    "h": 187.6
  },
  "luminance": 0.03897
}

Semantic roles & 50–950 ramp

primary

#043F3B

secondary

#801E25

accent

#2A38FE

background

#F5F7F6

surface

#E8EDEC

border

#C4C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #043F3B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →